Type-writing machine.



C. A. HENDRICKSON.

TYPE WRITING MACHINE.

APPLICATION FILED JAN. 14.1914.

Patented Aug. 17, 1915.

onirnn snares manna canton.

CHARLES A. HENDRICKSON, 0F YOUNGSTOWN, OHIO, ASSIGNOR T0 UNDERWOOD TWE- WRITER COMPANY, OF NEW YORK, N. Y., A CORPORATION DELAWARE.

V TYPE-WRITING MACHINE.

Specification of Letters Patent.

Patented. Aug. 17,1915.

Application filed January 14,1914. serialno. 811,950.

To all whom it may concern Be it known that 1, CHARLES A. HEN- DRIOKSON, a citizen of the United States, residing in Youngstown,in the county of Mahoning and State of Ohio, have invented certain new and useful Improvements in Type-Writing Machines, of which the following is a specification.

This invention relates to typewriting machines of the class in which a collating board is provided, on which are collated loose leaf ledger sheets, bills, or other work-sheets, the work-sheets usually being provided with regularly spaced marginal perforations to engage studs or pins on endless conveyers' running along the marginal edges of the board, whereby the sheets are conveyed to the platen and. held in their proper relation as they travel through the machine.

The invention relates especially to the means for conveying the work-sheets.

In machines of'this class considerable strain is placed on the endless conveyors in operating the machine, and this strain would be materially increased if there was any lack of flexibility or failure of the conveyers to run smoothly. It is therefore a desideratum that the conveyers shall combine great strength, flexibility andsmoothness of operation. It is also important that the conveyors shall run at exactly the same speed, or in other words, remain in synchronism to prevent any relative movement or displacement of the work-sheets.

The present invention is designed to meet the above requirements, and to this end the work-sheet conveying means may comprise endless sprocket chains each running over a sprocket wheel connected to rotate with the platen and. a sprocket wheel connected to an idler roll at the upper end of the collating board. This provides a strong and smooth runnin device, the sprocket chains being particu arly well adapted to withstand the strain placed on them in operating the machine, and also to maintain an accurate adjustment of the work members. The chains may be provided at regular-intervals with pins or studs on which the work members are i1npaled,said pinspreferably secured in the solid sections of the chains. The chains are preferably located beyond the side edges of the collating board and the sprocket wheels beyond the ends of the platen, so that the writing line may extend the full length of the platen. The chains are lo- ,cated below the upper face of the board, preferably with the upper faces of the chains in the same plane with the surface of the board so that the work-sheets may lie flat on the board. The chains may be supported in such position by offset extensions of the collating board.

Other features and advantages will hereinafter appear. In the accompanying drawings, Figure 1 1s a perspective view of the invention applied to an Underwood front-strike typewriting machine. Fig. 2 is a sectional side elevational view of the invention. Fig. 3 is a fragmentary sectional front elevation.

The typewriting machine may comprise a carriage 1 in which is shiftably mounted a platen frame comprising ends 2 and 3 connected by an inclined paper-shelf or table 4 on which work-sheets are guided to a platen 5 fixed on the platen axle 6 journaled in the ends of the platen frame.

The carriage may be propelled in the usual way by a driving spring under the control of letter-feeding mechanism actuated' by type keys which, when struck, operate as usual to throw the types 7 up to the printing line at the front of the platen. The platen may be rotated by the usual linespace mechanism (not shown) or by a handwheel or wheels 8 fixedto the end or ends of the platen axle 6.

The collating board 9 preferably extends upwardly and rearwardly from the platen in' an inclined position and may be supported on a frame comprising side bars 10 pivotally connected by means of screws 11 at their lower ends to the platen frame, the bars 10 being connected by transverse bars 12 and 13 to which is secured the board 9. The frame may be additionally supported in any suitable manner, as for example, by arms 14: which-may be connected to the carriag'e 1 or an auxiliary carriage. Such means of support, however, forms no part of the invention and further illustration is and projecting upwardly from endless chains 16 extending along the side edges of the board. These chains are preferably in' the form of sprocket chains runmng on sprocket wheels 17 which may be removably secured to the ends of the platen 5, or otherwise mounted on the. axle 6 to rotate with the platen, the wheels being of such diameter that the peripheries of the chains running.

over them are substantially in alinement such depth that the upper faces of the chains will lie substantially in the plane of the upper face of the board 9.

The studs or-pins 15 may be threaded into solid links of the chains and thus removably connected with the chains, or they may be riveted or otherwise secured in position. A bar 23, which may be a thin metal strip, is connected at its ends to the chains and is provided with pins 15 for the attachment of a sheet or sheets of manifolding material to be interposed between work-sheets. As the driving sprockets andchains are beyond the ends of the platen, the printing line may extend the full length of the platen. The

chains being located below the plane of the collating board permits the work-sheets to lie flat on the board.

A guidingapron 24.,which may be supported'by rods 25 fixed thereto and adjustably connected at 26 to the arms 21, eX- tends forward at its upper end over the roller 19 and at its lower end rests on the paper-shelf 4 and serves to guide and protect the work-sheets and prevents them from sagging as they are conveyed from the roller 19 down to the platen 5. It will be understood that the impaling pins 15 fit snugly in the perforations of the work-sheets, thus holding the latter in position on the chains and preventing disarrangement.

The upper sprocket wheels 18 maintain an accurate alinement of the chains, prevent any lateral play or displacement thereof, and thus .maintain the work-sheets acc'urately arranged and held taut as they are fed forward to the platen.

Variations maybe resorted to within the scope of the invention, and portions of the improvements may be used without others.

Having thus described my invention, I claim: I

1. In a typewriting machine, the combina tion with a rotary platen and a collating board, of flexible carriers driven by the platen and extending along the side edges of said board, the upper faces of said carriers.

being substantially in the plane of said board to lie closelyv against a work-sheet supported by said board, and means at intervals along the carriers for attaching worksheets at their margins to said carriers. .2. In a typewriting machine, the combination with a rotary platen and a collating board, of sprocket wheels connected to rotate with the platen, endless chains running over said sprocket wheels and extending along the edges of said board, and studs'or pins on said chains for the attachment. of work-sheets lying on said board with their margins overlying said chains and'impaled on said studs or pins.

3. In a typewriting machine, the combination wlth a rotary platen and a collating board, of sprocket teeth connected to rotate with the platen, a sprocket chain driven by said teeth and extending along the side edge of said board, means to support said chain with its 'upper face substantially in the plane of the board to lie closely against a work-sheet supported by said board, and pins projecting upwardly from the chain to enter perforations in the marginal'edges of work-sheets and feed them over the platen and saidboard.

4; In a typewriting machine, the combination with a rotary platen and a collating board, of a sprocket Wheel connected to rotate with the platen, an endless chain driven by said wheelwith its upper surface in the plane of the board to lie snugly against a work-sheet supported by said board, the

. edge of said board being offset to form a guideway'oyer which the chain runs, and by which the chain is supported in said position, and means on said chain for attaching work-sheets thereto. I,

. 5. Ina typewriting machine, the comb-ination with a rotary platen and a collating board, of sprocket wheels mounted on the platen axle beyond the ends of the platen, endless. chains driven by said wheels and extending along the margins of saidboard, said sprocket wheels being of such diameter that the outer faces of the chains running thereover are in alinement' with the surface of the platen, and means on said chains-to engage the margins of work-sheets, so that the latter are fed by said chains over the platen surface without slipping on the platen.

6. The combination with a rotary platen and a collating board, of endless chains on said chains.

7. The combination with a rotary platen and a collating board, of sprocket wheels mounted on the platen axle to rotate with the platen, a roller, sprocket wheels thereon, endless chains running over the sprocket wheels on the platen and said roller; said collating board extending between the platen and said roller with its upper face in a plane tangential to the platen and said roller, the upper faces of the sprocket chains being in said plane, to lie closely against the marginal portions of a work-sheet supported on said board, and means upon said chains engaging said work-sheet to feed the work-sheet over the platen and said board.

8. In a typewriting machine, the combination with a rotary platen and a collating board, of sprocket wheels concentric with the platen and connected to rotate with the platen, endless chains driven by said wheels, the edges of said board being offset to form guideways over which the chains run, said ofisets being of such depth that the upper faces of the chains will lie in the plane of the upper face of said board, whereby the marginal edges of a work-sheet" upon said board may lie closely against a chain, and impaling pins connected to the chains and projecting upwardly therefrom to enter perforations in said marginal edges, the outer faces of the chains as they run over said wheels being flush with the platen surface.

9. The combination with a roller platen and a collating board extending upwardly and rearwardly therefrom, of flexible endless carriers, driving means for said carriers mounted for rotation with the platen and concentric with the platen axis, said carriers' running on said driving means with their outer faces flush with the surface ofthe platen, said carriers extending from the platen along the side edges of said collating board, the upper surfaces of the carriers being in the plane of said board, a roller at the upper end of the collating board driven by said endless carriers, and means on said carriers for attaching thereto the margins of work-sheets'collated on said board, and

. causing said work-sheets to be carried upwardly to and around said roller, and thence downwardly to and around the platen.

10. The combination with a roller platen and a collating board extending upwardly and rearwardly therefrom, of flexible endless carriers, driving means for said carriers mounted for rotation with the platen and concentric with the platen axis, said carriers running on said driving means with their outer faces flush with the surface of the platen, said carriers extending from the platen along the side edges of said collating board, the upper surfaces of the carriers being in the plane of said board, a roller at the upper end of the collating board driven by said endless carriers, means on said car-y riers for attaching thereto the margins of work-sheets collated on said board, and

causing said work-sheets to be carried upthe upper end of said collating board, I

sprockets connected to rotate therewith about the axis of said roller and in alinement with the first-mentioned sprockets, endless sprocket chains passing around the said sprockets, the upper leads of the sprocket chains extending alongthe edges of the collating board with their upper surfaces in the plane of said board, said chains, as they curve around the axis of said platen and said roller respectively, having their outer faces substantially flush with the surfaces of said platen and roller respectively, and impaling pins on said chains to enter perforations in the margins of work-sheets for advancing the latter around the platen and over said collating board.

12. The combination with a roller platen, of a collating board extending upwardly and rearwardly therefrom, sprockets at the ends of the platen and connected to rotate therewith about the platen axis, a roller at the upper end of said collating board, sprockets connected to rotate therewith about the axis of said roller and in alinemment with the first-mentioned sprockets, endless sprocket chains passing around the said sprockets, the upper leads of the sprocket chains extending along the edges of the collating board with their upper surfaces in the plane of said board, said chains, as they curve around the axis of said platen and said roller respectively, having their outer faces substantially flush with the surfaces of said platen and roller respectively, impaling pins on said chains to enter perforations in the margins of work-sheets for advancing the latter around the platen and over said collating board, and a bar extending transversely from one sprocket chain to the other and attached to said chains .to move therewith, said bar forming a means for supporting and conveying with the work-sheets, sheets of manifolding material interposed between the work-sheets.

endless sprocket chains running over said sprocket Wheels and extending along the side edges of said board, and studs on said chains for the attachment of Work-sheets, the outer faces of said sprocket chains being flush with the platen surface as they run.

over the platen, sothat the Work-sheets may hug the'platen and lie against the chains I Without distortion asthey'are'fed over the platen.

CHARLES A. HEN DRICKSON. Witnesses: k HENRY C. WISSMAN.

CLINTON J. WALL. 

